Window ventilator



Sept. 4, 1928.

M. F. CLAY WINDOW VENTILATOR Filed Dec. 8, 1927 Patented Sept. 4, 1928. v

UNITED STATES teams PATENT OFFICE.

MARSHALL 'r. CLAY, or: oairron onro. T

winnow VENTILA'I'OR,

, Application'filed December 8, 1927. Serial No. 288,583

The invention relates to aventilators for windows and the like, and more particularly to an adjustable ventilatordesigned toreadily fit windows of variouswidths.

The object of the improvement is to provide a ventilator oflvery simple andinexpensive construction, comprising a pair ofend pieces toeach of Which is connected a plurality I of sheet metal slats, the slats on each end piece being slidably associated with those upon the other end piece; to term all of the slats alike so that they are readily interchange able and maybe made by the same die; to a a provide a ventilator which may be easilyand readily adjusted to reduce or increase the metal slats being connected at one end to each end piece, the slats beingall of similar design andeach having ears for slidably e011- necting the slats of both sides together eachw Islat being inclined transversely toward the outer side ot' theventilator and having an s 1 upturned flange at its inner edge and a similar depending .zflange at its outer edge, the slats being so positioned with reference tol eachother that an lncreaseddratt of air through the ventilator will be induced, the, endpieces being preferably provided with hinged joints whereby the ventilator may be reduced in height to admit more lightjsprings being provided upon the end pieces for attaching a cheesecloth or the like upon the inside of the ventilator to prevent dirt and soot from entering the room. a l

v An embodiment of the invention thus set forth in general terms is illustratedin the accompanying drawings, in which t Figure 1 is an inside elevation of the improved VGIltllllE-Ol, a portlon of the cheesetration;

cloth being removed for the purpose of illusvarious Widths. w

i Fig. 2, a vertical section through the ventilator; taken on theline 2 -22, Fig. 1; i

Fig. 3, a vertical section through oneot the end pieces, taken substantially on the line 33,Fig.1; a l i Figwl, a detached, persective: view of one of the springs for attaching thecheesecloth upon the inside of the ventilator and a Fig. 5, an enlarged,-detail section through the upper edge of the ventilator, and the attaching clip, taken substantially on theline 5 5, Fig. 1. a i a i j i ,Similar numerals refer to similar parts throughoutthe drawingl The improvedventrlator is provided with end pieces, preferably formedofwood, and

in caseit is desirable to makethefl ventilator adjustable as to height, in order to admitmore light during the day and moreair during the night, each end piece may be madeup, of two sections and 10?,:hingedlyconnectedto v gether as by the hingell. x 1 i it The bottom end ofthe lowersettion 10 is preferably beveled, as indicated at 12,, in

order to fit upon the slopingi window sill,

shown at 13. 'lhe meeting ends of the upper andlower sections of each side piece are preterably correspondingly beveled,fas indicated 14c,'being; inclined downward and out ward to'wardthe hinge, as illustrated in Fig. 3.

l A plurality of sheetmetalslats, indicated generally at l5 are connected to each of the end \piecesand adapted tobe slidably con 'nected to each other iniord'er to permit the ventilator to be adjusted to fit Windows of Each of these slats preferably comprises the inclined central portion a; 16 which is in-- cline d downward and outward and provided at its inner edge with the upright flange,-

17 and at its outer edge with the depending flangel8.

The flanges l7 and l8 may be provided with the ears 19 at theends adjacentwtothe end pieces, these ears beingconnectedlto the front and back sides of theend pieces as by nails 20 or the like.

N ear the free end of eachof the slats,tangs 21 arecut from the upper-Land lower flanges 17 and 18 1'espectively and bent over and under the upper and lower edges respectively, of the flanges of the slats carried by 7 the other side piece.

With this construction the slats carried by each end piece are slidably connected to the slats carried by the other end piece and so arranged that the ventilator may be opened to the maximum and closed to the minimum extent, whereby considerable adjustment of the ventilator is provided for fitting windows of various widths. y i a As best shown in Fig. 2 of the drawin s, the spaces between the lower edge of each epending flange 18 and the corner 22 of the next lower slat, and also the space between the upper edge of each upright flange 17 and the corner 23.0f the next upper slat,

-aretgreaterxthanthe tranverse width of the ventilator. 7

By thus having the increased inlet and outlet openingfor the air, ithas been found that anlinduced. draft ofair is produced through the ventilator.

If it is desired to cover the ventilator with cheesecloth or the like for the purpose of filtering the air and preventing dust, soot and the like irom passin through thesame,

ctor, after the same has been adjusted to the proper length to accommodate the window .in which itiis to be used.

' For the purpose of holding this cheesecloth upon .the ventilator, each of the end pieces as at29 and terminates in the inclined end may be provided with a groove around its top, bottom and inner sides as indicated at 25.

I p A spring wire 26 is adapted to be located 'in this groove and to clamp the cheesecloth uponthe end piece.

' As best shown in Fig. 4, this spring wire is normally curvedand provided at one end with the forwardly extending portion 27 and angularly disposed portion 28 which is inclined slightly toward thecurved body rpor tion 26. a The other end of the wire is bent forwardly 30 adapted to beseated in a socket 31 formed in thetop or bottom of the end case may be.

is normally curved, as shown in Fig. 4.,it will i be seen thatwhen the same is. placed in popiece as the Since the bodyportion of this spring wire sition upon the end piece, the inclined por' tions 28and 30 hearing against the front side of the end piece and the insideof the socket 31 respectively, will hold the spring wire flat against the cheesecloth, tightly clamping the same upon the inner side of the end piece.

If desired, U-shaped clips 32 may be placed over the upper edge of the flange 17 of the topmost slat, holding the upper edge of the cheesecloth against the same.

An angular end 33 may be provided upon theinclined depending portion 28 of the uppieces, a pluralit of slate, each slat being permost wire spring to form a stop for engagement with the parting strip 34 of the window frame when it is desired to tilt the ventilator inward to rest the window sash upon the top thereof.

For the pur ose of pivoting the ventilator so that it may e thus tilted, a wire 35 may be provided for pivotally connecting the lower end of each end piece to the window frame.

This wire mayha've an off-set as at 36 and the substantially horizontally disposed end portion 37 is adapted to be inserted into an opening38 drilled or otherwise provided in the side of the window frame 39.

The opposite end ofrthe wire has a downturned end 40 adaptedto be locatedin an aperture 41 in the window sill 42.

This provides a simple and easy means for attachingthe ventilator in the window frame, holdin the same in extended position and providing for the pivotal movement thereof in order to tilt the ventilator beneath the bottom of the window sash 43 or in upright position, outside of the path of the window sash as best shown in Fig. 2,

I claim: 7

1. A ventilator including upright end pieces, a plurality of slate fixed at one end to each end piece, andears stamped from the other end portion of each slat and bent over ing flange at the outer edge of each slat, an

upright flange at the inner edge of each slat, and extensions upon the ends of the upright flan es formingears fixed to opposite sides oftle upright endpieces. i V

3. A ventilator including upright end 1nclined downwar and outward,a depen ing flange at the outer edge of each slat, an upright flange at the inner edge of each slat, the

slats carried by each side. piece being slidably connected to the slats carried by the other side piece, and extensions upon the ends of the upright flan s forming ears fixed to opposite sides of t e-upright endpieces.

4. A ventilator including grooved upright end pieces and slats, a cheesecloth upon one side of the 'ventilator and 5 ring wires for clamping theend portions 0 the cheesecloth in said grooves, and having angular portions bent around the upper and lower ends of the end pieces. a

5. A ventilator including grooved upright end pieces and slats, a cheesecloth upon one side of the ventilator and s ring wires for clamping the end portions 0 the cheesecloth in said grooves, and having angular portions bent around the upper and lower ends of the end pieces the upper angular portion of each Wire having an outturned end forming it stop for engagement With the parting strip of a Window frame.

6'. A Ventilator including end pieces and slats, and a pair of Wire members, each havmg a horlzontal portion adapted to be located through the lower portion of one end piece 10 and into the Window frame, ashoulder for engagement with saidend piece and a depending portion for engagement in the Window sill. i n

In testimony that I claim the above, I have hereunto subscribed my name.

MARSHALL FecLAY. 

